Stable dry hydrosulfite mixture.



UNITED 'sTATEs 'lgENT OFFICE,

ALFRED RI NOKENBERGER, OF LUDWIGSHAFEN-ON-THE-RHINE, GERMANY, ASSIGNOR TO BADISOHE ANILI-N & SODA FABRIK, OF LUDWIGSHAFEN-ON-THE-RHINE, GERMANY, A CORPORATION. I

STABLE DRY HYDROSULFITE MIXTURE. No. 869,655. Specifieation of Letters Patent. Patented Oct. 29, 1907.

Application filed August 29, 1906. 1 Serial No. 332.529.

3' with alcohol, or the like, can be dried and afterwards be mlxed with qulcklime, o'r the like. 'In all cases about forty (40), degrees Centigrade, The product when kept in closed vessels.

Now what I claim is:

1. As 11 new composition of ma :contalnlng calcium bydrosulfite from uncomhlned water and a tulllc oxld. r 2. A5? a new composltlon of matter a dry stable mixture ttela dry stable mixture which is practically tree the wfhole 4. The

sulfite with alcohol; then adding lpgthewho le in' vaouo. In-testlmony whereof I have hereunto set my hand In thgpresence of-two'subscrlblng witnesses.

the alcohol, or the like, the product should be (ll-led in ALFRED HNCKENB-ERGER' vacuo, preferably at an elevated temperature. f'If de-" sired, the'calcium hydros'u lfite, which has been washed 3 wltneeses 1H: W. Hume, J. Awe. LLoYm;

possesses' a. high degree of purity and is" very steble ls pract lcally free of from about thirty (30) to r herelnbefore defined me- 

